Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Mechanical seal

Mechanical seal

US Patent 4418921 · Granted Dec 6, 1983

Estimated economic value: $4,690,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Propeller hub with self-adjusting pitch mechanism2000
Split mechanical face seal and method of assembly thereof1999
Backup seal for axial face seal1996
Shroud enclosure for brittle mechanical face materials1996
Mechanical seal1991
Mechanical seal assembly1987
Mechanical seal1986
Mechanical seal1986
Mechanical seal with cylindrical balance sleeve1985
Mechanical seal assembly1984
Mechanical seal assembly1984
Mechanical seal with eccentric seal faces1982